<clickhouse>
    <profiles>
        <default>
            <allow_asynchronous_read_from_io_pool_for_merge_tree>1</allow_asynchronous_read_from_io_pool_for_merge_tree>
            <max_streams_for_merge_tree_reading>64</max_streams_for_merge_tree_reading>
        </default>
    </profiles>
</clickhouse>
